Face sheets, also known as sheet masks, are a popular skincare product. They are made of a thin sheet soaked in a concentrated serum or essence. These sheets are designed to be placed on the face for a certain amount of time, usually around 15-20 minutes. They can help hydrate, nourish, and revitalize the skin, targeting specific concerns like dryness, dullness, or acne. Face sheets are a great addition to any skincare routine for a pampering and refreshing experience.